<!DOCTYPE html>
<html lang="en">

<head>
  <meta charset="UTF-8">
  <meta name="viewport" content="width=device-width, initial-scale=1.0">
  <title>Document</title>
  <style>
    * {
      margin: 0;
      padding: 0;
    }

    .box {
      margin: 0 auto;

      width: 1226px;
      height: 614px;
      /* background-color: pink; */
    }

    .left {
      float: left;

      width: 234px;
      height: 614px;
      background-color: #800080;
    }

    .right {
      float: right;

      width: 978px;
      height: 614px;
      /* background-color: green; */

    }

    ul {
      /* 去掉列表符号 */
      list-style: none;
    }

    .right li {
      float: left;

      margin-right: 14px;
      margin-bottom: 14px;

      width: 234px;
      height: 300px;
      background-color: #87ceed;
    }

    /* 第4个li和第8个li右间距清除 */
    .right li:nth-child(4n) {
      margin-right: 0;
    }
  </style>
</head>

<body>
  <div class="box">
    <div class="left"></div>
    <div class="right">
      <ul>
        <li></li>
        <li></li>
        <li></li>
        <li></li>
        <li></li>
        <li></li>
        <li></li>
        <li></li>
      </ul>
    </div>
  </div>
</body>

</html>